package com.hl.service;

import com.hl.pojo.CourseCollection;
import org.springframework.stereotype.Service;

import java.util.List;


public interface CourseCollectionService {
    Integer add(CourseCollection courseCollection);
    Integer update(CourseCollection courseCollection);
    Integer del(Integer id);
    CourseCollection findById(Integer id);
    List<CourseCollection> findAll();



}
